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An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. [1] Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone.
London Stone, Yantlet Creek. The transition between the Thames Estuary and the North Sea has been located at various notional boundaries, including: [1] The Yantlet Line between the Crow Stone (London Stone) on the northern foreshore at Chalkwell, Westcliff-on-Sea and another London Stone off the Isle of Grain, to the south.
The Chesapeake Bay (/ ˈ tʃ ɛ s ə p iː k / CHESS-ə-peek) is the largest estuary in the United States. The bay is located in the Mid-Atlantic region and is primarily separated from the Atlantic Ocean by the Delmarva Peninsula, including parts of the Eastern Shore of Maryland, the Eastern Shore of Virginia, and the state of Delaware.
St. Lawrence River Estuary stretches from west to east for 655 km, from the outlet of Lake Saint Pierre to Pointe-des-Monts, [1] where it becomes the Gulf of St. Lawrence, in Quebec, Canada. The estuary is divided into 3 parts: the fluvial estuary , the middle estuary and the maritime estuary .
Mobile Bay is the fourth-largest estuary in the United States with a discharge of 62,000 cubic feet (1,800 m 3) of water per second. [1] Annually, and often several times during the summer months, the fish and crustaceans will swarm the shallow coastline and shore of the bay.
The site (Severn Estuary and Upper Severn Estuary) is listed in the 'Forest of Dean Local Plan Review' as a Key Wildlife Site (KWS). [ 20 ] Both SSSI citations provide detail of the geological and biological interest and of particular note is the international importance for wintering and wading birds of passage, [ 1 ] and of estuarine habits ...
The estuary begins at the eastern tip of Île d'Orléans, just downstream from Quebec City. [7] The river becomes tidal around Quebec City. [21] The St. Lawrence River runs 3,058 kilometres (1,900 mi) from the farthest headwater to the mouth and 1,197 km (743.8 mi) from the outflow of Lake Ontario. These numbers include the estuary; without the ...
The sea level in the Thames estuary is rising and the rate of rise is increasing. [ 22 ] [ 23 ] Sediment cores up to 10 m deep collected by the British Geological Survey from the banks of the tidal River Thames contain geochemical information and fossils which provide a 10,000-year record of sea-level change. [ 24 ]